GRBL’s PWM functionality – How to control a laser or variable speed spindle.

As of Version 0.9, GRBL supports PWM for controlling variable spindles and lasers. (Both our Arduino CNC shield(V3.10+) and Raspberry Pi CNC Boards support the PWM functionality. ) To use the functionality there are two parts to look at. The first part is the way GRBL firmware is set up when compiled. Luckily most of … Continue reading GRBL’s PWM functionality – How to control a laser or variable speed spindle.